Reverse-valve mechanism



Oct. 9,1923.

` E. RlEsNx-:R

REVERSE VALVE MECHANI SM Filed July 26 1921 Patented @eink 9, 1923.

tlltlpil@ STATES time@ FRANK nrnsnnn, or onIsKA, non'rn: naizotra.`

REVERSE-VALVE MECHANISM.

Application led July 26,

To all iti/tom it m ofg/ concern.'

Be it known that I, FRANK RIEsNEn, a citizen of the United States7 residing at Orislra, in the county of Barnes and State et North Dakota, have invented new and useful Improvements in Reverse-Valve liechanism, ot which the following is a specification.

rlhe object ol my present invention is the provision of simple, inexpensive and eiiicient reverse valve n'zechanism designed more especially :For use in conjunction with a hydraulic motor and intermediate of the motor and the drive wheels of an automobile or the like. j

To the attainment ot the foregoing, the invent-ion consists in the improvement as hereinafter described and definitely claimed.

ln the accompanying drawings forming' part hereotr- Figure 1 is a view partly in planand partly in section illustrative `of thev best practical embodiment of my invention which l am cognizant.

Figure f2 is a detail side elevation illustrating the hand lever, and the means 'for adjustahly fixing; the same. 1.

Similar numerals ot reference designate correspending` parts in both views of the drawing.

1 and 2 designate a pair ot cylinders in which work the pistons 5i and il. 'lhe `iluid inlet pipe 6 and outlet pipe 5 are alternately thrown into communica tion with 'the ends oi the cylinder by the slide vulves 7 and 5%.

As the valve mechanism i"or operating' each slide valve is ol identical construction the following' description will be limited to that associated with valve 7. l he stem 9 et the valve 'T has fixed thereto collars 'l0 and ll. which are adapted `to l i. alternately eu- IQan'ed by the end oiE the pivot lever 1Q. The lever 'l2 is tulcrumed at 12X. `Salif! stem 9 is jl'lided in a stationary support Xl The. lever 12 is givingl alternate movements by the control rod 13. which may be operated inanually in any suitable manner though` l pre'ler to ein ploy a hand lever 1S connected to the control rod 13 and eqllipped with a detent 141-.X 'For coojieration with a fixed see'rnental rack 15X. A link 14 is `pivoted to a stationary support 15. One end of the linkr 14 has a pin and slot connection 16 with the stem 9.

For the purpose of giving` movements to the 1921. Serial lTo. 487,631.

link 14, l provide a slide 17 pivotally connected to the opposite end of the link as indicated 187 and having` projections 19 and 2O which are arranged to be alternately en raged by a tappet projection 21 carried by the block 22 on the piston rod 22X. The said piston rod is designed t-o be. connected in any conventional manner with a rotary `disk connected by appropriate gearing with an `automobile axle. Attention is called to the fact that the projections 19 and 2O are so disposed that they will be engaged by the projection Q1 just before the piston 4 reaches its limit of travel in either direction. This `kick of the slide 17 at the termination of the `travel of the piston throws the mechanism into position to move the valve 7 to its `other position.

It will be apparent from, the 'foregoingY that through the medium ot my novel valve mechanism a hydraulic motor can be re versed at any time through the medium ot vthe control rod 13. `With the'parts arranged as shown the piston 2 is moved in one direction,.and the piston in the cylinder 1 is at `the end ot its traverse in the opposite dir.ection. Therefore when the control rod 18 is pulled or moved backwardly. the valves will reverso the motor.

The slides 17 are guided at 1T* in tionary supports.

llavinpj described my invention. what l rlaiiin and desire to secure by Letters-Patent, isz

Reverse valve nieclianism` 'for hydraulicv motors `comprisingV piston cylinders. pistons movable therein and having' rods on which are tappet projections. valve casings associated with the cylinders, a fluid supply conu duit connected with the valve casinos. un cX-l haust conduit connected with the exhaust ports ot thecylinders. slide valves operable in the casinn'1 and having' stems on which are spaced collars. levers connected with said stems, means suiuiortiner the levers` means to actuute said levers and reciprm'ate the valves, a lever tulcrumed at an intermediate point et. itsilencjth and having' its end portions arranged between the collars on the stems to cooperate with said collars, and manual means to movejsaid lever to reverse the motors. i

ln testimony whereof 1 aliix my signature FRANK RESNER.

sta- 

